2022
DOI: 10.1111/jipb.13413
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Evolution of lmiRNAs and their targets from MITEs for rice adaptation

Abstract: Twenty‐four nucleotide long microRNAs (lmiRNAs) direct DNA methylation at target genes and regulate their transcription. The evolutionary origin of lmiRNAs and the range of lmiRNA‐mediated regulation remain obscure. Here, we reannotated lmiRNAs and their targets in rice by applying stringent criteria. We found that the majority of lmiRNAs are derived from Miniature Inverted‐repeat Transposable Elements (MITEs) and most sites targeted by MITE‐derived lmiRNAs reside within MITEs, suggesting co‐evolution of lmiRN… Show more

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Cited by 5 publications
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“…MicroRNAs (miRNAs) are 21–24-nucleotide (nt) small RNAs that play important regulatory roles in plant development and responses to biotic and abiotic stresses ( 1 , 2 ). 21-nt miRNAs are associated with ARGONAUTE 1 (AGO1) to down-regulate target gene expression through mRNA cleavage and/or translation inhibition ( 3 ), whereas 24-nt long miRNAs are associated with AGO4 to repress target gene transcription through DNA methylation ( 4 , 5 ).…”
mentioning
confidence: 99%
“…MicroRNAs (miRNAs) are 21–24-nucleotide (nt) small RNAs that play important regulatory roles in plant development and responses to biotic and abiotic stresses ( 1 , 2 ). 21-nt miRNAs are associated with ARGONAUTE 1 (AGO1) to down-regulate target gene expression through mRNA cleavage and/or translation inhibition ( 3 ), whereas 24-nt long miRNAs are associated with AGO4 to repress target gene transcription through DNA methylation ( 4 , 5 ).…”
mentioning
confidence: 99%